set_property -dict {PACKAGE_PIN U18 IOSTANDARD LVCMOS33} [get_ports sys_clk]
set_property -dict {PACKAGE_PIN N16 IOSTANDARD LVCMOS33} [get_ports sys_rst_n]
set_property -dict {PACKAGE_PIN T19 IOSTANDARD LVCMOS33} [get_ports rxd]
set_property -dict {PACKAGE_PIN T11 IOSTANDARD LVCMOS33} [get_ports {led_output[7]}]
set_property -dict {PACKAGE_PIN T5 IOSTANDARD LVCMOS33}  [get_ports {led_output[6]}]
set_property -dict {PACKAGE_PIN U7 IOSTANDARD LVCMOS33}  [get_ports {led_output[5]}]
set_property -dict {PACKAGE_PIN V8 IOSTANDARD LVCMOS33}  [get_ports {led_output[4]}]
set_property -dict {PACKAGE_PIN U8 IOSTANDARD LVCMOS33}  [get_ports {led_output[3]}]
set_property -dict {PACKAGE_PIN T9 IOSTANDARD LVCMOS33}  [get_ports {led_output[2]}]
set_property -dict {PACKAGE_PIN V6 IOSTANDARD LVCMOS33}  [get_ports {led_output[1]}]
set_property -dict {PACKAGE_PIN Y6 IOSTANDARD LVCMOS33}  [get_ports {led_output[0]}]
